Wiring Diagram

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synchronization code matching thus raising PKT flag. Therefore, the PKT flag pulls high but if the
CRC is incorrect, it should be re-entered into the receiving process (clear FIFO, enabling it to
receive... ).
5、 PKT_FALG How does the state change
After the TX is started, the PKT FLAG will automatically pull down, the PKT FLAG will be raised
after the data is sent, and then the PKT FLAG will remain high until the TX or RX is started again.
Under the default configuration, start the RX after PKT FLAG will automatically pull down, and then
the chip will always search syncword, once received the correct syncword, chips will continue to
receive, deal with subsequent packets, packets, such as receiving, after the completion of PKT
FLAG high and maintain high level until once again to start the TX and RX.
6、 SYNCWORD How to set up
In the receiving state, the chip will continue to receive and process the subsequent packets
only after receiving the correct syncword, so the setting of syncword has some effect on the
reception performance. Through reg0x03[12:11] can set the length of the syncword, [and] can be
set by reg0x1f ~ reg0x22 syncword concrete data, through reg0x24[5:0] can set the number of
fault-tolerant bit syncword syncword (if set to 1, received wrong 1 bit also will receive a follow-up
data). If syncword is long and fault-tolerant, it might be syncwoIt is possible that the data from the
sending end is missed because of the error of syncword. If the syncword is set very short, the fault
tolerance is set high, and the received noise or interference is easy to match with syncword and the
data is wrong. Therefore, the setting of syncword should be determined according to the specific
application environment. In general, the length is set to 48bit, and the fault tolerance of 1bit is
better.